diff options
Diffstat (limited to 'test/CodeGenCXX/empty-nontrivially-copyable.cpp')
-rw-r--r-- | test/CodeGenCXX/empty-nontrivially-copyable.cpp | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/test/CodeGenCXX/empty-nontrivially-copyable.cpp b/test/CodeGenCXX/empty-nontrivially-copyable.cpp new file mode 100644 index 000000000000..9ee3281505ec --- /dev/null +++ b/test/CodeGenCXX/empty-nontrivially-copyable.cpp @@ -0,0 +1,25 @@ +// RUN: %clang_cc1 -triple armv7-apple-ios -x c++ -emit-llvm -o - %s | FileCheck %s + +// According to the Itanium ABI (3.1.1), types with non-trivial copy +// constructors passed by value should be passed indirectly, with the caller +// creating a temporary. + +struct Empty; + +struct Empty { + Empty(const Empty &e); + bool check(); +}; + +bool foo(Empty e) { +// CHECK: @_Z3foo5Empty(%struct.Empty* %e) +// CHECK: call {{.*}} @_ZN5Empty5checkEv(%struct.Empty* %e) + return e.check(); +} + +void caller(Empty &e) { +// CHECK: @_Z6callerR5Empty(%struct.Empty* %e) +// CHECK: call {{.*}} @_ZN5EmptyC1ERKS_(%struct.Empty* [[NEWTMP:%.*]], %struct.Empty* +// CHECK: call {{.*}} @_Z3foo5Empty(%struct.Empty* [[NEWTMP]]) + foo(e); +} |